P1457 on 2003-2017 Honda Accord (LX, EX, EX-L, Sport, Touring) — Evaporative Emission Control System Leak Detected (Canister System)
1 vehicles · 1 makes · $25-$400 repair
Most Reported On
P1457 is an OBD-II diagnostic trouble code meaning “Evaporative Emission Control System Leak Detected (Canister System).” The companion code to P1456: the ECM's EVAP leak test isolated the leak to the charcoal canister side of the system, downstream of the vent shut valve. Honda commonly traces this to the canister vent shut valve or the two-way bypass solenoid. This code is most commonly reported on 2003-2017 Honda Accord (LX, EX, EX-L, Sport, Touring), with repair costs ranging from $25 to $400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1457 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1457 mean?
P1457 stands for "Evaporative Emission Control System Leak Detected (Canister System)." The companion code to P1456: the ECM's EVAP leak test isolated the leak to the charcoal canister side of the system, downstream of the vent shut valve. Honda commonly traces this to the canister vent shut valve or the two-way bypass solenoid.
What are the most common causes of P1457?
The most common causes of P1457 are: Failed EVAP canister vent shut valve, Failed bypass solenoid valve or its vacuum lines, Cracked or rodent-chewed canister hoses, Saturated or cracked charcoal canister, Failed fuel tank pressure sensor reading. The specific cause varies by vehicle.
How much does it cost to fix P1457?
Repair costs for P1457 range from $25 to $400, depending on the vehicle and root cause.
Which vehicles are affected by P1457?
Au7o has documented P1457 across 1 vehicle models from 1 manufacturers: Honda.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.